Made this on Friday night to accompany chicken, and steamed broccoli.
I sliced the potatoes before boiling them, and then followed the recipe, I did put a generous sprinkling of cheddar cheese over the casserole and by the time it had baked, the top was a lovely bubbly golden :D
Another time I might also sprinkle with cayenne or add some extra seasoning, but DH and DD said it was great as was and needed nothing extra.
I halved the recipe very easily, using two medium potatoes to three boiled eggs.
Thanks, Lorac, for a simple but different potato dish :D